/*
 * Copyright 2010 - 2011, The PLDesktop Development Team
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

#ifndef PLPIT_H
#define PLPIT_H

#include <machine/pc/processor/irqhandler.h>
#include <machine/pc/processor/schedulertimer.h>
#include <machine/pc/ioport.h>

#include <tools/PLSingleton.h>
using namespace PLSDK;

/**
 * The programmable interval timer implements the SchedulerTimer interface.
 */
class PLPit : public PLSingleton<PLPit>, public PLSchedulerTimer, private PLIrqHandler {
	friend class PLSingleton<PLPit>;
public:
	/**
	 * Register a timer handler that was called in a defined number of times.
	 *
	 * @param handler The handler to set.
	 * @return True if all was successfully.
	 */
	virtual bool registerHandler(PLTimerHandler *handler);
	/**
	 * Start the controler.
	 *
	 * @return True if the start was successfully.
	 */
	bool start();
protected:
	/**
	 * The default constructor.
	 */
	PLPit();
	/**
	 * The destructor.
	 */
	inline virtual ~PLPit() {}
private:
	PLPit(const PLPit &);
	PLPit &operator = (const PLPit &);
	virtual bool irq(uint8_t number, InterruptState &state);
	PLIOPort m_IoPort;
	uint32_t m_IrqId;
	PLTimerHandler *m_Handler;
};

#endif
